public class HardStudy {

    public static void main(String[] args) {
        System.out.println("\\\"hello\\\"");
        //System.out.println("\\"hello\\"");
        System.out.println("/\"hello/\"");
    }
    public static void main23(String[] args) {
        String str = "123456";
        int i = Integer.parseInt(str);
        System.out.println(i+1);
    }
    public static void main22(String[] args) {
        int i = 100;
        String str = i+"";
        System.out.println(str);
    }
    public static void main21(String[] args) {
        int x = 10;
        int y = 20;
        System.out.println("x: "+x +" y:"+y);
        System.out.println("x: "+x+y);
        System.out.println(x+y+"lilong");
        System.out.println(x + y);
    }
    public static void main20(String[] args) {
        String arr1 = "Hello";
        String arr2 = "World";
        //System.out.println(arr1 + arr2);//arr1+arr2是拼接的意思
        int x = 10;
        int y = 20;
        System.out.println("x:" + x + "y:" +y);
        System.out.println(x + y);
    }
    public static void main19(String[] args) {
        byte num = 10;
        byte len = 20;
        int sum = num + len;
        System.out.println(sum);
    }
    public static void main18(String[] args) {
        int Code = 100;
        long Play = 200;
        int Good = (int)(Code + Play);
        System.out.println(Good);
    }
    public static void main17(String[] args) {
        short a = 128;
        byte b = (byte)a;
        System.out.println(a);
        System.out.println(b);
    }
    public static void main16(String[] args) {
        int Eat = 100;
        long Sleep = 200L;
        Eat = (int)Sleep;
        System.out.println(Eat);
    }
    public static void main15(String[] args) {
        int num = 100;
        long sum = 200L;
        sum = num;
        System.out.println(sum);
    }
    public static void main14(String[] args) {
        int num = 1;
        long len = 2L;
        num = (int)len;
        System.out.println(num);
        int x = 10;
        long y = 20L;
        y = x;
        System.out.println(y);
    }
    public static void main13(String[] args) {
        //boolean a = true;
        //System.out.println(a);
        //boolean b = false;
        //System.out.println(b);
    }
    public static void main12(String[] args) {
        char a = 'Y';
        System.out.println(a);
        char b = '李';
        System.out.println(b);
        char c = 99;
        System.out.println(c);
        char d = 67;
        System.out.println(d);
    }
    public static void main11(String[] args) {
        float b = 123.123f;
        float c = (float)12.00;
    }
    public static void main10(String[] args) {
        double yyds = 123.123;
        System.out.println(yyds);
        System.out.println(Double.MAX_VALUE);//最大值
        System.out.println(Double.MIN_VALUE);//最小值
    }
    public static void main9(String[] args) {
        byte yyds = 100;
        System.out.println(yyds);
        System.out.println(Byte.MAX_VALUE);//最大值
        System.out.println(Byte.MIN_VALUE);//最小值
    }
    public static void main8(String[] args) {
        short sh = 100;
        System.out.println(sh);
        System.out.println(Short.MAX_VALUE);//short最大值
        System.out.println(Short.MIN_VALUE);//short最小值
    }

    public static void main7(String[] args) {
        int a = 10;
        System.out.println(Integer.MAX_VALUE);
    }

    public static void main6(String[] args) {
        long a = 10L;
        System.out.println(Long.MAX_VALUE);//输出长整型的最大值
        System.out.println(Long.MIN_VALUE);//输出长整型的最小值
    }

    public static void main5(String[] args) {
        long a = 100L;//大写L表示这是一个长整型变量
        System.out.println(a);
    }
    public static void main3(String[] args) {
        char ch = 'a';
        System.out.println(ch);
    }

    public static void main4(String[] args) {
        //int a = 2147483648;
        //System.out.println(a);
    }

    public static void main2(String[] args) {
        int JavaYyds;
        //System.out.println(JavaYyds);
    }
    public static void main1(String[] args) {
        int a = 10;
        System.out.println(a);
    }
}